Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mitzi Geller, M.S., CCC-SLP

Speech-Language Pathologist in Menlo Park, CA · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1881955458

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Registry record

Entity type Individual (Type 1)

Name Ms. Mitzi Geller

Credential M.S., CCC-SLP

Sex Female

Practice address 120a Santa Margarita Ave, Menlo Park, CA, 94025

Phone (650) 324-0648

Fax (650) 324-9880

Enumeration date May 31, 2012

Last updated in NPPES May 31, 2012

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License SP8296 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Mitzi Geller?

Mitzi Geller is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-31.